Define Data object Person with field String:name Define enumeration fact: Person field: name context: [ 'John' , ' "John, senior" ' ] Create new guided decision table Define new simple condition column Pattern: Person: [$p] Calculation type: Literal value Field: name Operator: is contained in comma separated list Header: name is Append row into table Double click the added cell of the new colum Multivalue select box with options John and "John, senior" will appear Select both, press enter Notice in table cell will be just John It should be John,"John, senior" Check generated rule Correctly contains: $p : Person( name in ( "John, senior", "John" ) ) Again double click the same cell Just the value John will be selected Both John and "John, senior" should be selected